US618534A

US618534A - brown

Info

Publication number: US618534A
Authority: US
Publication date: 1899-01-31
Anticipated expiration: 1916-01-31

Description

No. 6l8.534. I Patented Jan. 3|, I899.

: n. .1. BROWN.

TROLLEY.

- Appfication filed Dec. 1, 1897.)

(No Model.) 3 Sheets-8heet l.-

INVENTOR WW 2M ATTORNEY m: NcRms PErEns co" PHOTO L1THQ. WASHINGTON. o. c

Patented Ian. 3|, I899. D. J. BROWN.

TROLLEY.

No. s|a,534.

(Application filed Dec. 1, 1897.)

3 Sheets-Sheet 2.

(No Model.)

w ATTORNEY D. J. BROWN.

No. 6l8,534.

Patented Ian. 3|, 1899.

T R 0 L L E Y (Application filed. Dec. 1, 1897.

3 Sheets-Sheet 3.

(No Model.)

' INVENTDR izwid fliwwx WITNESSES QZ M 76d ATTORNEY ilNrTnn STATES PATENT Tries.

DAVID J. BROWVN, OF NEW YORK, N. Y.

TROLLEY.

SPECIFICATION forming part of Letters Patent No. 618,534, dated January 31, 1899.

Application filed December 1, 1897. Serial No. 660,458. (No model.)

To all whom it may concern.-

Be it known that I, DAVID J. BROWN, of New York, (Brooklyn,)in the county of Kings, in the State of New York, have invented a new and useful Improvement in Trolleys, of which the following is a specification, reference being had to the drawings accompanying and forming a part of the same.

The present invention relates to trolleys, and more particularly to devices for preventing the trolley from wholly disengaging the wire with which it runs in contact, and also contemplates means for easily and readily restoring the trolley into proper contacting position when the same has become disengaged or thrown 0E the wire with which it is designed to run in contact.

In the drawings I have illustrated a construction embodying the features of my invention, in which Figure 1 is a side elevation. Fig. 2 is a plan View. Fig. 3 is a central section of Fig. 2. Fig. 1 is an edge elevation. Fig. 5 is a side elevation of a modification, certain parts being broken away; and Fig. 6 is a similar View to Fig. 5, showing another modification.

Like figures of reference refer to like parts throughout the several views of the drawings.

Referring to the drawings in detail, 1 represents a trolley-pole provided with a trolleywheel 2, suitably journaled in side plates 3 3. Mounted on the same shaft as the trolleywheel is a frame 1, the side plates converging to a contracted or neck portion 5 and being provided with diverging guide-arms 6. Secured to the opposite end of the frame is a cord 7 for operating the device, as hereinafter described. Secured to an extension 8 of the frame-4c, at a point in the rear of the point of attachment of the operating-cord,is a connecting chain or cord 9,whose other end is attached to a spring 10, suitably secured on the trolleypole, this spring-and-chain connection to the frame 4: being for the purpose of normally holding the said frame and guide-arms carried thereon out of engaging position with the trolley-wire.

11 11 represent side pieces which are suitably secured on the side plates 3 of the trolley, the means for securing shown in the drawings being a dovetailed slide 12. Secured to these side pieces are arms 13, which may con sist of a wire rod bent at an angle, one arm of which is secured in the side pieces and the other projects laterally therefrom to engage the trolley-wire and prevent the trolley becoming totally disengaged therefrom. The projecting portion of the arm 13 is controlled by a spring 14 to normally lie in a plane at right angles to the side plates 3 3.

In the modification shown in Fig. 5 I have shown a coiled spring 15, mounted on the same axis as the trolley, to control the guide-arms 6, and in Fig. 6 I have shown a similar spring to that shown in Fig. 5, but mounted in the side plates 3 3, below the trolley-wire and connected to the guide-arms 6 by means of a chain 16, passing under a friction-roller 17, over the upper side of which passes the operating-cord 7.

The function of the arms 13 is to prevent the trolley-wheel from becoming wholly disengaged from the wire, as heretofore stated, said arms being insulated from the side plates, so that when the wire is in contact with the arms 13, after the wheel itself has become disengaged from the trolley-wire, no current will pass to the motor. When the conductor discovers that the trolley-wheel has left the wire, he draws down the operating-cord 7, which throws up the arms 6 to the position shown in dotted lines in Fig. 1, at the same time drawing down the trolley-pole so that the Wire is embraced between the arms 6, and upon releasing the operating-cord or relieving the tension thereon the arms 6 guide the trolleypole to the wire and cause the wheel to rest in. contact therewith, this same operation permitting the spring controlling the frame 4 and arms 6 to return to their normal position, as shown in full lines in Fig. 1.

It will noted that the arms 13 are springcontrolled, this being for the purpose of permitting said arms to swing out of their normal position when any obstruction is encountered. For a similar reason the arms 6 are connected to the frame portion by a spring connection, so that when any obstruction is encountered said arms will assume the position shown in dotted lines in Fig. 2.

\Vhat I claim as new is- 1. The combination with a trolley-pole hav= ing a trolley-wheel journaled in its free end,

a frame carrying guide-arms loosely carried.

by the journals of said Wheel and normally held to keep the guide-arms out of position, means for moving the frame to bring the arms into position, and a detachable arm carried by said pole on each side of the trolley-Wheel, said arms being insulated from the pole, substantially as described.

2. The combination with a trolley-pole having side plates at its free end, a trolley-Wheel journaled between said plates, guide-arms carried by the journals of said wheel, detachable side pieces carried by said guideplates and an arm yieldingly held in each of said pieces, substantially as described.

3. The combination with a trolley-pole having side plates, at its free end, a trolley-wheel